<template>
  <div class="user">
      <!-- 面包屑导航区 -->
      <el-breadcrumb separator-class="el-icon-arrow-right">
        <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
        <el-breadcrumb-item>用户管理</el-breadcrumb-item>
        <el-breadcrumb-item>用户列表</el-breadcrumb-item>
      </el-breadcrumb>
      <!-- 卡片视图区域 -->
      <el-card >
        <!-- 搜索与添加区域 -->
        <el-row :gutter="20">
          <el-col :span="6">
            <el-input placeholder="请输入内容"  v-model="queryInfo.query" :clearable='true' @clear="getUserList">
                <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
            </el-input>
          </el-col>
          <el-col :span="4">
            <el-button type="primary" @click="addDialogVisible=true">添加用户</el-button>
          </el-col>
        </el-row>
        <!-- 用户列表区 -->
        <el-table
          :data="userList"
          :border="true"
          :stripe='true'>
          <el-table-column type="index"></el-table-column>
          <el-table-column
            prop="username"
            label="姓名">
          </el-table-column>
          <el-table-column
            prop="email"
            label="邮箱">
          </el-table-column>
          <el-table-column
          prop="mobile"
          label="电话">
          </el-table-column>
          <el-table-column
          prop="role_name"
          label="角色">
          </el-table-column>
           <el-table-column
          label="状态">
          <template slot-scope="scope">
            <el-switch
              v-model="scope.row.mg_state" @change="userStateChanged(scope.row)">
            </el-switch>
          </template>
          </el-table-column>
           <el-table-column
          label="操作"
          width="200px">
          <template slot-scope="scope">
            <!-- 修改按钮 -->
            <el-button type="primary" 
            icon="el-icon-edit" 
            size="mini" 
            @click="showEditDialog(scope.row.id)"></el-button>
            <!-- 删除按钮 -->
            <el-button 
            type="danger" 
            icon="el-icon-delete" 
            size="mini"
            @click="removeUserById(scope.row.id)"></el-button>
            <!-- 分配角色按钮 -->
            <el-tooltip class="item" effect="dark" content="分配角色" placement="top" :enterable='false'>
                <el-button 
                type="warning" 
                icon="el-icon-setting" 
                size="mini"
                @click="setRole(scope.row)"></el-button>
            </el-tooltip>
          </template>
          </el-table-column>
        </el-table>
        <!-- 分页区 -->
        <el-pagination
          @size-change="handleSizeChange"
          @current-change="handleCurrentChange"
          :current-page="queryInfo.pagenum"
          :page-sizes="[1, 2, 5, 10]"
          :page-size="queryInfo.pagesize"
          layout="total, sizes, prev, pager, next, jumper"
          :total="total">
          </el-pagination>
      </el-card>
      <!-- 添加用户对话框 -->
      <el-dialog
        title="添加用户"
        :visible.sync="addDialogVisible"
        width="50%"
        @close="addDialogClosed">
        <!-- 内容主题区 -->
        <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
          <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
          </el-form-item>
           <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
          </el-form-item>
           <el-form-item label="邮箱" prop="emial">
          <el-input v-model="addForm.emial"></el-input>
          </el-form-item>
           <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
          </el-form-item>
        </el-form>
        <!-- 底部区 -->
        <span slot="footer" class="dialog-footer">
          <el-button @click="addDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="addUser">确 定</el-button>
        </span>
      </el-dialog>
      <!-- 修改用户信息对话框 -->
      <el-dialog
        title="修改用户"
        :visible.sync="editDialogVisible"
        width="50%"
        @close="editDialogClosed">
        <el-form :model="editForm" 
        :rules="editFormRules" 
        ref="editFormRef" 
        label-width="70px">
        <el-form-item label="用户名">
        <el-input v-model="editForm.username" :disabled="true"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
        <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
        <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
        </el-form>
        <span slot="footer" class="dialog-footer">
          <el-button @click="editDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="editUserInfo">确 定</el-button>
        </span>
      </el-dialog>
      <!-- 分配角色的对话框 -->
    <el-dialog
        title="分配角色"
        :visible.sync="setRoleDialogVisible"
        width="50%"
        @close="setRoleDialogClosed">
        <p class="roledia">当前的用户:{{userInfo.username}}</p>
        <p class="roledia">当前的角色:{{userInfo.role_name}}</p>
        <p class="roledia">分配新角色:
          <el-select v-model="selectRoleId" placeholder="请选择">
            <el-option
            v-for="item in rolesList"
            :key="item.id"
            :label="item.roleName"
            :value="item.id">
            </el-option>
          </el-select>
        </p>
        <span slot="footer" class="dialog-footer">
    <el-button @click="setRoleDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
        </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  components: {},
  props: {},
  data() {
    // 验证邮箱规则
    var checkEmail = (rule,value,cb) => {
          const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/

          if (regEmail.test(value)) {
            // 合法的邮箱
            return cb()
          }

          cb(new Error('请输入合法的邮箱'))
    }
    // 验证手机号规则
    var checkMobile=(rule,value,cb)=>{
        // 验证手机号的正则表达
        const regMobile =/^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/

        if(regMobile.test(value)) {
          return cb()
        }

        cb(new Error('请输入合法的手机号'))
    }
    return {
      
      // 获取用户列表参数对象
      queryInfo:{
        query:'',
        // 当前的页数
        pagenum:1,
        // 当前每页显示多少条数据
        pagesize:2
      },
      userList:[],
      total:0,
      // 控制添加用户对话框的显示及隐藏
      addDialogVisible:false,
      // 查询到的用户信息对象
      editForm:'',
      // 添加用户表单数据
      addForm:{
        username:'',
        password:'',
        email:'',
        mobile:''
      },
      // 控制编辑用户信息对话框的显示及隐藏
      editDialogVisible:false,
      // 添加用户表单验证规则
      addFormRules:{
        username:[
          {
            required:true,message:'请输入用户名',trigger:'blur'
          },{
            min:3,max:10,message:'用户名长度在3-10字符之间',trigger:'blur'
          }],
          password:[
          {
            required:true,message:'请输入密码',trigger:'blur'
          },{
            min:6,max:16,message:'用户名面面在6-16字符之间',trigger:'blur'
          }],
          emial:[
          {
            required:true,message:'请输入邮箱',trigger:'blur'
          }, 
          { validator:checkEmail , trigger: 'blur' }],
          mobile:[
          {
            required:true,message:'请输入手机号',trigger:'blur'
          },
          { validator:checkMobile , trigger: 'blur' }]
      },
      // 修改用户信息表单的验证规则
      editFormRules:{
        email:[{ required: true, message: '请输入用户邮箱', trigger: 'blur'},{ validator:checkEmail , trigger: 'blur' }],
        mobile:[{
            required:true,message:'请输入手机号',trigger:'blur'
          },
          { validator:checkMobile , trigger: 'blur' }]
      },
      // 控制分配角色对话框的显示与隐藏
      setRoleDialogVisible:false,
      // 需要被分配角色的用户信息
      userInfo:{},
      // 所有角色的数据列表
      rolesList:[],
      // 已选中的角色ID值
      selectRoleId:''
      
    };

  },
  watch: {},
  computed: {},
  methods: {
    async getUserList() {
      const {data : res}=await this.$http.get('users',{
        params:this.queryInfo
      })
      if(res.meta.status !==200) return this.$message.error('获取用户列表失败')
      this.userList=res.data.users;
      this.total=res.data.total
      // console.log(res);
    },
    // 监听pagesize改变的事件
    handleSizeChange(newSize) {
      // console.log(newSize);
      this.queryInfo.pagesize=newSize
      this.getUserList()
    },
    // 监听页码值改变
    handleCurrentChange(newPage) {
      // console.log(newPage);
      this.queryInfo.pagenum=newPage
      this.getUserList()
    },
    // 监听switch开关状态的改变
    async userStateChanged(userInfo) {
      // console.log(userInfo);
      const {data:res}=await this.$http.put(`users/${userInfo.id}/state/${userInfo.mg_state}`)
      if (res.meta.status !==200 ) {
        userInfo.mg_state=!userInfo.mg_state
        return this.$message.error('更新用户状态失败')
      }
      this.$message.success('更新用户状态成功')
    },
    // 监听添加用户界面关闭事件
    addDialogClosed() {
      this.$refs.addFormRef.resetFields()
    },
    // 点击按钮，添加新用户
    addUser() {
      this.$refs.addFormRef.validate(async valid=>{
        // console.log(valid);
        if (!valid) return
        // 发起添加用户的网络请求
        const {data:res} = await this.$http.post('users',this.addForm)

        if (res.meta.status !== 201) {
          this.$message.error('添加用户失败')
        }
        this.$message.success('添加用户成功')
        this.addDialogVisible=false
        // 重新获取用户列表
        this.getUserList()
      })
    },
    // 展示编辑对话框的方法
    async showEditDialog(id) {
      // console.log(id);
      const {data:res}=await this.$http.get('users/'+id)
      if (res.meta.status !==200) {
        return this.$message.error('查询用户信息失败!')
      }
      this.editForm=res.data
      this.editDialogVisible=true
    },
    // 修改用户信息表单关闭时触发的方法
      editDialogClosed() {
        this.$refs.editFormRef.resetFields()
      },
      // 修改用户信息并提交（预验证）
      editUserInfo() {
        this.$refs.editFormRef.validate(async valid=>{
          // console.log(valid);
          if (!valid) return
          // 发起修改用户信息的数据请求
          const {data:res}=await this.$http.put('users/'+this.editForm.id,{
            email:this.editForm.email,
            mobile:this.editForm.mobile
          })

          if (res.meta.status !==200) {
            return this.$message.error('更新用户信息失败')
          }

          // 关闭对话框
          this.editDialogVisible=false
          // 刷新数据列表
          this.getUserList()
          // 提示修改成功
          this.$message.success('更新用户信息成功')

        }) 
      },
      // 根据id删除用户信息按钮
      async removeUserById(id) {
        // console.log(id);
        // 弹框询问提示
        const confirmResult=await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err=>err)
        // 如果用户确认删除，则返回值为字符串confirm
        // 如果用户取消了删除，则返回值为字符串cancel
        // console.log(confirmResult);
        if (confirmResult !=='confirm') {
          return this.$message.info('已取消删除')
        }
        // console.log('确认删除');
        const {data:res}=await this.$http.delete('users/'+id)
        if (res.meta.status !==200) {
          this.$message.error('删除用户失败')
        }
        this.$message.success('删除用户成功')
        this.getUserList()
      },
      // 展示分配角色的对话框
      async setRole(userInfo) {
        // 展示对话框前获取所有角色列表
        const {data:res}=await this.$http.get('roles')
        if (res.meta.status !==200) {
          return this.$message.error('获取角色列表失败!')
        }
        // console.log(userInfo);
        this.rolesList=res.data
        this.userInfo=userInfo
        this.setRoleDialogVisible=true
      },
      // 点击按钮，分配角色
      async saveRoleInfo() {
        if (!this.selectRoleId) {
          return this.$message.error('请选择要分配的角色！')
        }

        const {data:res}=await this.$http.put('users/'+this.userInfo.id+'/role',{
          rid:this.selectRoleId
        })

        if (res.meta.status !==200) {
          return this.$message.error('更新角色列表失败！')
        }

        this.$message.success('更新角色成功！')
        this.getUserList()
        this.setRoleDialogVisible=false
      },
      // 监听分配角色对话框关闭事件
      setRoleDialogClosed() {
        this.selectRoleId=''
        this.userInfo={}
      }
  },
  created() {
    this.getUserList()
  },
  mounted() {}
};
</script>
<style  scoped>
.el-table{
  font-size: 12px;
  margin-top: 15px;
}

.roledia{
  display: block;
  margin: 30px;
}
</style>